Probing the subsurface lattice rotation dynamics in bronze after sliding wear
Probing the subsurface lattice rotation dynamics in bronze after sliding wear
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DOI：
10.1016/j.scriptamat.2019.07.002
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发表时间：
2019-11-01
影响因子：
6
通讯作者：
Beaudoin, A. J.
中科院分区：
文献类型：
--
作者：
Cai, W.;Bellon, P.;Beaudoin, A. J.
用电子背散射衍射仪和透射电子显微镜研究了多晶和单晶铜镍锡青铜销-盘式磨损后的亚表面晶格旋转。大部分颗粒沿滑动方向剪切，其旋转轴绕销的横向方向，表现出弱的剪切织构。沿滑动方向的取向分布随地下塑性应变的增加而增大，符合幂函数关系。由局部晶粒取向的施密德因子可以看出，针法向晶粒再取向的大小与活动滑移系的数目有关。(C)2019 Acta Materialia Inc.由Elsevier Ltd.出版。保留所有权利。
The subsurface lattice rotation of polycrystalline and single crystal Cu-Ni-Sn bronze after pin-on-disc wear test were characterized using electron-backscattered diffraction and transmission electron microscopy. The majority of grains were sheared in the sliding direction with rotation axis around the transverse direction of the pin, exhibiting a weak shear texture. The orientation spread along the sliding direction increased with subsurface plastic strain, following a power law relationship. The grain re-orientation magnitude in the pin normal direction was found to be related to the number of active slip systems, as indicated by the Schmid factors of the local grain orientation. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.